Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus

Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus

The drag reduction characteristics in a rotating disk apparatus were investigated by using structured disks with different riblet types and dimensions. Two disk types were fabricated with right angle triangular (RAT) grooves and space v-shape (SV) grooves, with six dimensions for each type. A high-a...

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Main Authors: Rashed, Musaab K., Abdulbari, Hayder A., Mohamad Amran, Mohd Salleh, M. Halim Shah, Ismail
Format: Article
Language:English
English
Published: IOP Science 2017
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/16728/
http://umpir.ump.edu.my/id/eprint/16728/
http://umpir.ump.edu.my/id/eprint/16728/
http://umpir.ump.edu.my/id/eprint/16728/1/rashed2017.pdf
http://umpir.ump.edu.my/id/eprint/16728/7/fkksa-2017-hayder-Effect%20of%20Structure%20Height1.pdf
id ump-16728
recordtype eprints
spelling ump-167282018-01-11T06:51:46Z http://umpir.ump.edu.my/id/eprint/16728/ Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus Rashed, Musaab K. Abdulbari, Hayder A. Mohamad Amran, Mohd Salleh M. Halim Shah, Ismail TP Chemical technology The drag reduction characteristics in a rotating disk apparatus were investigated by using structured disks with different riblet types and dimensions. Two disk types were fabricated with right angle triangular (RAT) grooves and space v-shape (SV) grooves, with six dimensions for each type. A high-accuracy rotating disk apparatus was fabricated and then used to investigate the turbulent drag reduction characterization of the disk in diesel fuel. In this work, the effects of several parameters are investigated; riblet types, riblet dimensions, and rotational disk speed (rpm) on the drag reduction performance. It was found that the surface structure of the disk reduced the drag, this was clearly seen from the comparison of torque values of smooth and structured disks. Drag reduction for structured disks was higher than that for smooth disks, and SV-grooves showed better drag reduction performance than RAT-grooves. In addition, it was observed that the drag reduction performance increased with decreasing groove height for both groove types. The maximum drag reduction achieved in this study was 37.368 for SV-groove at 1000 rpm, compared with 30 for RAT-groove, at the same rotational speed. IOP Science 2017-12-07 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/16728/1/rashed2017.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/16728/7/fkksa-2017-hayder-Effect%20of%20Structure%20Height1.pdf Rashed, Musaab K. and Abdulbari, Hayder A. and Mohamad Amran, Mohd Salleh and M. Halim Shah, Ismail (2017) Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus. Fluid Dynamics Research, 49 (015507). pp. 1-13. ISSN 1873-7005 http://iopscience.iop.org/article/10.1088/1873-7005/49/1/015507/meta doi:10.1088/1873-7005/49/1/015507
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
English
topic TP Chemical technology
spellingShingle TP Chemical technology
Rashed, Musaab K.
Abdulbari, Hayder A.
Mohamad Amran, Mohd Salleh
M. Halim Shah, Ismail
Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus
description The drag reduction characteristics in a rotating disk apparatus were investigated by using structured disks with different riblet types and dimensions. Two disk types were fabricated with right angle triangular (RAT) grooves and space v-shape (SV) grooves, with six dimensions for each type. A high-accuracy rotating disk apparatus was fabricated and then used to investigate the turbulent drag reduction characterization of the disk in diesel fuel. In this work, the effects of several parameters are investigated; riblet types, riblet dimensions, and rotational disk speed (rpm) on the drag reduction performance. It was found that the surface structure of the disk reduced the drag, this was clearly seen from the comparison of torque values of smooth and structured disks. Drag reduction for structured disks was higher than that for smooth disks, and SV-grooves showed better drag reduction performance than RAT-grooves. In addition, it was observed that the drag reduction performance increased with decreasing groove height for both groove types. The maximum drag reduction achieved in this study was 37.368 for SV-groove at 1000 rpm, compared with 30 for RAT-groove, at the same rotational speed.
format Article
author Rashed, Musaab K.
Abdulbari, Hayder A.
Mohamad Amran, Mohd Salleh
M. Halim Shah, Ismail
author_facet Rashed, Musaab K.
Abdulbari, Hayder A.
Mohamad Amran, Mohd Salleh
M. Halim Shah, Ismail
author_sort Rashed, Musaab K.
title Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus
title_short Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus
title_full Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus
title_fullStr Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus
title_full_unstemmed Effect of Structure Height on the Drag Reduction Performance using Rotating Disk Apparatus
title_sort effect of structure height on the drag reduction performance using rotating disk apparatus
publisher IOP Science
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/16728/
http://umpir.ump.edu.my/id/eprint/16728/
http://umpir.ump.edu.my/id/eprint/16728/
http://umpir.ump.edu.my/id/eprint/16728/1/rashed2017.pdf
http://umpir.ump.edu.my/id/eprint/16728/7/fkksa-2017-hayder-Effect%20of%20Structure%20Height1.pdf
first_indexed 2023-09-18T22:22:41Z
last_indexed 2023-09-18T22:22:41Z
_version_ 1777415762193940480

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